Density: 5.9-6.0 g/cm³.
Hardness (Mohs): 8.8-9.0.
Flexural Strength: 800-1200 MPa.
Compressive Strength: 2100-2500 MPa.
Thermal Conductivity: 2.0-2.5 W/m·K.
Coefficient of Thermal Expansion: 10×10⁻⁶/℃.
Maximum Operating Temperature: ≤1050℃ (long-term).
Fracture Toughness: 8-10 MPa·m½.
Zirconia Sealing Ring Product Introduction
Zirconia sealing rings are industrial sealing components made from zirconia ceramic material, primarily composed of 94.8% zirconia. They possess characteristics such as high temperature resistance (up to 2200℃), corrosion resistance, and wear resistance. With an elastic modulus exceeding 200 GPa and a thermal expansion coefficient of 10×10⁻⁶/℃, they are suitable for extreme thermal environments.
Product Features
1. Superior Mechanical Properties: Bending strength exceeding 1000 MPa, hardness reaching 8-9 GPa; low density advantage, resulting in lighter weight compared to traditional metal sealing rings.
2. Excellent Wear Resistance: Hardness far surpasses most metals, resulting in extremely low wear; possesses self-lubricating properties, eliminating the need for external lubricants.
3. Outstanding High-Temperature Performance: Melting point as high as 2700-2850℃; good thermal shock resistance, capable of withstanding rapid temperature changes.
4. Good Chemical Stability: Strong resistance to acids, bases, and organic solvents; excellent high-temperature oxidation resistance.
5. Unique Biocompatibility: Compatible with human tissue and non-toxic; suitable for medical devices such as artificial joint sealing components.
Application Fields
1. Petrochemical Industry: Used in mechanical seals in high-temperature and high-pressure environments to prevent leakage.
2. Chemical Fiber Industry: Resists corrosion from chemical fibers, extending equipment lifespan.
3. Nuclear Energy Field: Withstands high temperatures (2715℃) and radiation, ensuring nuclear safety.
4. Aerospace Industry: Lightweight design reduces energy consumption.
5. Mechanical Manufacturing: Used in critical components such as bearings, pumps, and valves, improving wear resistance by 3-5 times.
Application Cases
1. Petrochemical Industry: In high-temperature and high-pressure environments, zirconia sealing rings can effectively prevent leakage and ensure the stable operation of equipment.
2. Chemical Fiber Industry: Zirconia sealing rings can withstand the corrosion of chemical fibers, extending the service life of the equipment.
3. Nuclear Energy Field: Due to their high fire resistance and stability, zirconia sealing rings have become critical components, ensuring the safety of the equipment.
Supports custom specifications.